[mjmein]

My go-to replacement for Wordpress is Grav. It is a flat file cms, which means that it doesn't require any database. All posts are stored in markdown files with yaml front matter. However there is also an admin GUI frontend for non technical users.

Not using a database makes it really simple to install or migrate servers (just copy the directory).

On the other hand, being a dynamic PHP app means there is no explicit build step needed, and you can build any kind of plugin that you need.

https://getgrav.org/